An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2022-03-23T19:46:43

Updated: 2024-08-03T17:16:04.250Z

Reserved: 2022-01-03T00:00:00

Link: CVE-2021-4197

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-23T20:15:10.200

Modified: 2023-11-07T03:40:21.077

Link: CVE-2021-4197

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-12T09:00:00Z

Links: CVE-2021-4197 - Bugzilla